The phrase "acknowledgment signal" is correct and usable in written English.
It can be used in contexts related to communication, signaling, or feedback, particularly in technical or formal discussions.
Example: "In our communication protocol, an acknowledgment signal is sent to confirm receipt of the message."
Alternatives: "confirmation signal" or "response signal".
In practice, the relays send acknowledgment signals to the destination, indicating the status of each packet.
If the receiver decodes the packet correctly, the recovered bits are output and an acknowledgment (ACK) signal is fed back to the transmitter.
At the receiver side, if the packet is successfully decoded by the receiver, a positive acknowledgment (ACK) signal is returned to the transmitter through an error-free feedback channel with zero delay; otherwise a negative acknowledgment (NACK) signal is returned indicating a decoding failure.
A negative acknowledgment (NACK) signal is transmitted at the end of time slot t which means that the primary user was sensed as idle when its true state was active, and the secondary user transmits As(t) = m≥1 packets which resulted in a collision.
"This is a signal acknowledgment, made even more remarkable by her winning the Amberson Lectureship at the ATS last year.
It is both an acknowledgment and a signal that the monopoly on decision-making, hitherto held by the West, will need to be broken.
Likewise, "President Obama must be willing to more directly signal U.S. acknowledgment of China's arrival as a great power and with that, a role in shaping new global rules and norms," the former C.I.A. analyst Christopher Johnson wrote this week.
The postwar concern with "prejudice" signaled an acknowledgment of the pervasiveness of racial and religious antipathies.
It signals the acknowledgment of the league that the credibility of its competition is being questioned.
